Drilling Exploration and Rotary Drilling

1. Basics of the borehole design – evaluation of the predicted geological profile in terms of determining the drilling technique and technology
2. Rocks drillability – working process of the drilling tools, various influences on strength and deformability of rocks during its disjunction, classification of the drilling tools
3. Design of roller-cone drilling bits, basis of roller-cone drilling bits kinematics, selection of the bit for various rock types
4. Drill string – work process of the drill string inside the borehole – functional assessment of drill strings for various types of boreholes, drill string malfunctions, precautions to the drill string failures; drill string straining calculation
5. Casing string - work process of the casing string inside the borehole, casing string straining analysis, lowering and stabilization of the casing string, casing string failures, casing string straining calculation
6. Drilling regime – optimal and reasonable drilling regime, classification of drilling regime – its measuring and monitoring
7. Technology of borehole cementation – calculations of cement volume, pressure and time for cementing borehole
8. Break downs inside the borehole – methods and tools for removal of the break down, methods of overcoming pressure effects inside the borehole